Remove accidentally introduced SpEL test method

SpringEL300Tests's #testArray method was originally introduced with
SPR-9203, which has not yet been backported to 3.1.x. During the process
of backporting SPR-9486 functionality, this method was accidentally
introduced, causing false negative test failures. This commit removes
the offending test method.

Issue: SPR-9203, SPR-9486

org.springframework.expression/src/test/java/org/springframework/expression/spel/SpringEL300Tests.java

@@ -1159,35 +1159,6 @@ public class SpringEL300Tests extends ExpressionTestCase {
 		}
 	}
 
-	@Test
-	public void testArray() {
-		ExpressionParser parser = new SpelExpressionParser();
-		StandardEvaluationContext context = new StandardEvaluationContext();
-		Expression expression = null;
-		Object result = null;
-
-		expression = parser.parseExpression("new java.lang.Long[0].class");
-		result = expression.getValue(context, "");
-		assertEquals("Equal assertion failed: ", "class [Ljava.lang.Long;", result.toString());
-
-		expression = parser.parseExpression("T(java.lang.Long[])");
-		result = expression.getValue(context, "");
-		assertEquals("Equal assertion failed: ", "class [Ljava.lang.Long;", result.toString());
-
-		expression = parser.parseExpression("T(java.lang.String[][][])");
-		result = expression.getValue(context, "");
-		assertEquals("Equal assertion failed: ", "class [[[Ljava.lang.String;", result.toString());
-		assertEquals("T(java.lang.String[][][])",((SpelExpression)expression).toStringAST());
-
-		expression = parser.parseExpression("new int[0].class");
-		result = expression.getValue(context, "");
-		assertEquals("Equal assertion failed: ", "class [I", result.toString());
-
-		expression = parser.parseExpression("T(int[][])");
-		result = expression.getValue(context, "");
-		assertEquals("Equal assertion failed: ", "class [[I", result.toString());
-	}
-
 	@Test
 	public void SPR_9486_floatFunctionResolverTest() {
 		try {